Table 2.

T‐test on Grain Size Categories

	GS1	GS2	GS3	GS4
GS1		2.91E–05	4.44E–16	3.38E–11
GS2			8.06E–09	2.43E–07
GS3				0.2203
GS4

Note. A Welch's t test was used to determine if there is a significant difference between the means of the normalized H peak areas for the different grain size categories. Coarse silt or smaller (GS1), coarse silt to very fine sand (GS2), very fine to medium sand (GS3), and medium to very coarse sand (GS4). Two‐tailed p values (testing the alternative hypothesis that μ_A ≠ μ_B) are reported; p values passing 95% confidence are bolded.